在devc上可以运行，但是在头歌上运行不了，是什么情况？

#include

#include

struct Node

{

int data;

struct Node* next;

};

struct Node* createNode(int data)//初始化链表

{

struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));

if (newNode == NULL)

{

printf("Memory allocation failed!\n");

exit(1);

}

newNode->data = data;

newNode->next = NULL;

return newNode;

}

void insertNode(struct Node* head, int data)//将数据加入成为链表的一部分

{

struct Node* newNode = createNode(data);

struct Node* curr = head;

while (curr->next != NULL)

curr = curr->next;

curr->next = newNode;

}

void printList(struct Node* head)//输出链表

{

struct Node* curr = head->next;

while (curr != NULL)

{

printf("%d ", curr->data);

curr = curr->next;

}

printf("\n");

}

void mergeLists(struct Node* list1, struct Node* list2)//将两个非递减有序单链表合并成一个非递减有序单链表

{

//========begin=======

struct Node *mergeList = createNode(0);

struct Node *c = mergeList;

struct Node *c1 = list1->next ;

struct Node *c2 = list2->next ;

while(c1 != NULL&&c2 != NULL)

{

if(c1->data <= c2->data)

{

c->next = c1;

c1 = c1->next;

}

else

{

c->next = c2;

c2 = c2->next;

}

c = c->next;

}

if(c1 != NULL)

{

c->next = c1;

}

else

{

c->next = c2;

}

list1->next = mergeList->next ;

free(mergeList);

//=========end========

}

void freeList(struct Node* head) //释放节点所占的内存空间

{

struct Node* curr = head;

while (curr != NULL)

{

struct Node* temp = curr;

curr = curr->next;

free(temp);

}

}

int main()

{

struct Node* list1 = createNode(0);

struct Node* list2 = createNode(0);

int m, n, i, x;

scanf("%d", &m); //输入第一个链表

for (i = 0; i < m; i++)

{

scanf("%d", &x);

insertNode(list1, x);

}

//========begin=======

//和输入第一个单链表一样，输入第二个链表

scanf("%d",&n);

for(i = 0;i < n;i++)

{

scanf("%d",&x);

insertNode(list2,x);

}

//=========end========

mergeLists(list1, list2); //合并链表

printList(list1);

freeList(list1);

freeList(list2);

return 0;

}